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全国初中应用物理竞赛,旨在增强学生学习兴趣,使学生了解物理知识的应用,在实践中学习物理,应用物理,培养学生的独立思考能力、动手操作能力、综合分析能力等.题目新颖,理论与实际联系紧密,题型难度大,题量多.平时教学中,如果能够做到奥赛试题的一题多解,既可以开拓学生视野,点拨学生思维,又可以较为全面的培养优秀学生的综合能力. 相似文献
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我们知道, “ 拉格朗日点”是指在两大物体引力作用下, 能够使小物体稳定的点, 本文中举出的一道中
学生物理竞赛题, 正是涉及的这一问题 相似文献
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这属奥林匹克竞赛在芬兰的赫尔辛基举行。每个国家派5名学生参加。这届的规模出以往各届都大,共有来自37个国家的178名参赛,而我也能够成为这次盛大竞赛的参加之一! 相似文献
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中学物理竞赛问题所包含的知识容量较大,问题情景新颖,题中渗透了较多的物理学研究方法和思维方法,集科研性、综合性、方法性、实践性于一体,它是培养优秀学生的创新意识、创新能力、创新精神的肥沃土壤.在中学物理竞赛辅导教学中培养学生的创新能力是进行物理创新教学的一种重要途径,它的重要性在于培养将来进行科学研究和创新的潜在的"金牌选手".下面就在物理竞赛辅导教学中如何培养学生的创新能力谈几点做法. 相似文献
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如何在课后自主实验中培养学生的物理学科核心素养是一个值得研究的问题.文章介绍了中国高中生物理创新竞赛,根据具体赛题详细分析了依托该项赛事开展课后自主实验,有利于培养学生的物理观念,启迪科学思维,提升科学探究能力,培养科学态度与责任. 相似文献
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Giacomo Mauro D’Ariano 《International Journal of Theoretical Physics》2017,56(1):97-128
David Finkelstein was very fond of the new information-theoretic paradigm of physics advocated by John Archibald Wheeler and Richard Feynman. Only recently, however, the paradigm has concretely shown its full power, with the derivation of quantum theory (Chiribella et al., Phys. Rev. A 84:012311, 2011; D’Ariano et al., 2017) and of free quantum field theory (D’Ariano and Perinotti, Phys. Rev. A 90:062106, 2014; Bisio et al., Phys. Rev. A 88:032301, 2013; Bisio et al., Ann. Phys. 354:244, 2015; Bisio et al., Ann. Phys. 368:177, 2016) from informational principles. The paradigm has opened for the first time the possibility of avoiding physical primitives in the axioms of the physical theory, allowing a re-foundation of the whole physics over logically solid grounds. In addition to such methodological value, the new information-theoretic derivation of quantum field theory is particularly interesting for establishing a theoretical framework for quantum gravity, with the idea of obtaining gravity itself as emergent from the quantum information processing, as also suggested by the role played by information in the holographic principle (Susskind, J. Math. Phys. 36:6377, 1995; Bousso, Rev. Mod. Phys. 74:825, 2002). In this paper I review how free quantum field theory is derived without using mechanical primitives, including space-time, special relativity, Hamiltonians, and quantization rules. The theory is simply provided by the simplest quantum algorithm encompassing a countable set of quantum systems whose network of interactions satisfies the three following simple principles: homogeneity, locality, and isotropy. The inherent discrete nature of the informational derivation leads to an extension of quantum field theory in terms of a quantum cellular automata and quantum walks. A simple heuristic argument sets the scale to the Planck one, and the currently observed regime where discreteness is not visible is the so-called “relativistic regime” of small wavevectors, which holds for all energies ever tested (and even much larger), where the usual free quantum field theory is perfectly recovered. In the present quantum discrete theory Einstein relativity principle can be restated without using space-time in terms of invariance of the eigenvalue equation of the automaton/walk under change of representations. Distortions of the Poincaré group emerge at the Planck scale, whereas special relativity is perfectly recovered in the relativistic regime. Discreteness, on the other hand, has some plus compared to the continuum theory: 1) it contains it as a special regime; 2) it leads to some additional features with GR flavor: the existence of an upper bound for the particle mass (with physical interpretation as the Planck mass), and a global De Sitter invariance; 3) it provides its own physical standards for space, time, and mass within a purely mathematical adimensional context. The paper ends with the future perspectives of this project, and with an Appendix containing biographic notes about my friendship with David Finkelstein, to whom this paper is dedicated. 相似文献
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《中国物理C(英文版)》2015,(6)
<正>Monthly,founded in 1977Published monthly in hard copy by Science Press and online by the Institute of High Energy Physics of the Chinese Academy of Sciences(domestic)and by IOP Publishing,Temple Circus,Temple Way,Bristol BS1 6HG,UK(international). 相似文献
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Carlo Rovelli 《Foundations of Physics》2018,48(5):481-491
Contrary to claims about the irrelevance of philosophy for science, I argue that philosophy has had, and still has, far more influence on physics than is commonly assumed. I maintain that the current anti-philosophical ideology has had damaging effects on the fertility of science. I also suggest that recent important empirical results, such as the detection of the Higgs particle and gravitational waves, and the failure to detect supersymmetry where many expected to find it, question the validity of certain philosophical assumptions common among theoretical physicists, inviting us to engage in a clearer philosophical reflection on scientific method. 相似文献
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在实施新课程改革的大背景下,运用理论与实践相结合的方法就物理美学对物理教学的意义做了论述,以引起同行们对物理美学研究及其应用的关注. 相似文献
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目前很多中学的物理教育中存在着不尽如人意之处,如初中阶段不求甚解的记忆,高中阶段大量的习题操练,更为严重的是,物理教师的物理精神越来越淡漠,教学成了解题训练,缺乏“假设-实验-观察-探索”的精神,没有真正将学生领进物理学大门.那么,教师怎样才能很好地传承物理精神。将学生带进奇妙的物理世界呢? 相似文献
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编者按:为什么启东中学在国际中学生物理竞赛中连连取胜?这是个大家都感兴趣的问题.他们在多年的物理竞赛实践中闯出了一条物理教育改革之路,在实验班中有效地形成了自主学习的局面.他们的做法虽然是针对参加物理竞赛的特殊学生群体的,但是据了解对贵校普通班的教学也已起到一定推动作用,这一套做法与当前我国高中物理课程标准改革提倡的基本理念是一致的.从一定意义上讲,启东中学物理竞赛的成功做法也为我国高中物理课程改革提供了一种实践经验.我们希望广大中学物理教育工作者对一年一度的全国中学生物理竞赛能从教育改革的角度进行科学地探索. 相似文献